<!ELEMENT cronentries (cron)*>
<!ELEMENT cron (url, description, schedule, timezone, retry-parameters?)>
<!ELEMENT url (#PCDATA)>
<!ELEMENT description (#PCDATA)>
<!ELEMENT schedule (#PCDATA)>
<!ELEMENT timezone (#PCDATA)>
<!ELEMENT target (#PCDATA)>
<!ELEMENT retry-parameters (task-retry-limit?, task-age-limit?, min-backoff-seconds?, max-backoff-seconds?, max-doublings?)>
<!ELEMENT task-retry-limit (#PCDATA)>
<!ELEMENT task-age-limit (#PCDATA)>
<!ELEMENT min-backoff-seconds (#PCDATA)>
<!ELEMENT max-backoff-seconds (#PCDATA)>
<!ELEMENT max-doublings (#PCDATA)>
